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Ksju [112]
3 years ago
9

Brainliest if u can solve and show working out

Mathematics
1 answer:
ioda3 years ago
3 0

Answer:

first distribute

3/4x- 3/4= 1 1/4x - 2 1/2

1 3/4= 2/4x

x= 3 1/2

Step-by-step explanation:

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Which is a true statement about the given ratios?
Digiron [165]

Answer:

44

Step-by-step explanation:

3 0
3 years ago
Graph the inequality 7< y -3x < 11
alexira [117]

Answer:

X=5 Y=-4

Step-by-step explanation:

4 0
3 years ago
Express as ordinary numbers. 8.97 x 10^-3<br><br> 0.0897<br> 0.00897<br> 8970
olga nikolaevna [1]

Hello! Here is your answer! ☺

Answer: B. 0.00897

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Hope this helps you out! ☺

4 0
3 years ago
Avani is trying to find the height of a radio
kiruha [24]

Answer:

The height of the antenna is 7.0 m

Step-by-step explanation:

Let the height of the antenna be represented by x, and the distance from Avani's eyes to the top of the building A by y. And let z = x + y, so that:

Tan 42 = \frac{y}{21}

y = Tan 42 x 21

  = 0.9004 x 21

  = 18.9084

y = 18.91 m

Also,

Tan 51 = \frac{z}{21}

z = Tan 51 x 21

  = 1.2349 x 21

  = 25.9329

z = 25.93 m

Therefore,

x = z - y

  = 25.93 - 18.91

  = 7.02

x = 7.02 m

The height of the antenna is 7.0 m

8 0
3 years ago
Simplify.
amid [387]

Answer:

  1. D
  2. B

Step-by-step explanation:

You may find this easier if you distribute the minus sign first.

<h3>1)</h3>

2a^2 -3ab +5b^2 -a^2 +2ab -3b^2

  = (2 -1)a^2 +(-3+2)ab +(5 -3)b^2

  = a^2 -ab +2b^2 . . . . . matches choice D

__

<h3>2)</h3>

6x -3 -2x +2

  = (6 -2)x +(-3 +2)

  = 4x -1 . . . . . matches choice B

4 0
3 years ago
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